Add all

Node js.code-workspace

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+{
+	"folders": [
+		{
+			"path": "."
+		}
+	],
+	"settings": {}
+}

app.js

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+const express = require('express');
+const app = express();
+const path = require('path');
+const bodyParser = require('body-parser');
+const mongoose = require('mongoose');
+const User = require('./models/user');
+const session = require('express-session');
+const MongoDBStore = require('connect-mongodb-session')(session);
+const csrf = require('csurf');
+const flash = require('connect-flash');
+const multer = require('multer');
+app.use(bodyParser.urlencoded({ extended: false }));
+const fileStorage = multer.diskStorage({
+    destination: (req, file, cb) => {
+        cb(null, 'images');
+    },
+    filename: (req, file, cb) => {
+        // cb(null, new Date().toISOString + '-' + file.originalname)
+        cb(null, Date.now() + '-' + file.originalname)
+    }
+});
+const fileFilter = (req, file, cb) => {
+    if (file.mimetype === 'image/png' || file.mimetype === 'image/jpg' || file.mimetype === 'image/jpeg') {
+        cb(null, true);
+    }
+    else {
+        cb(null, false);
+    }
+}
+app.use(multer({ storage: fileStorage, fileFilter: fileFilter }).single('image'));
+// EJS
+app.engine('ejs', require('ejs').__express);
+app.set('view engine', 'ejs');
+app.set('views', 'views');
+// Handlebars
+// const expressHbs = require('express-handlebars');
+// app.engine('hbs', expressHbs.engine({
+//     layoutsDir: 'views/layouts/',
+//     defaultLayout: 'main-layout',
+//     extname: 'hbs'
+// })
+// );
+// app.set('view engine', 'hbs');
+// PUG
+// app.engine('pug', require('pug').__express);
+// app.set('view engine','pug');
+// app.set('views', 'views');
+const admin = require('./routes/admin');
+const shopRouter = require('./routes/shop');
+const authRouter = require('./routes/auth');
+const errorRouter = require('./routes/error');
+const MONGODB_URI = 'mongodb+srv://Pooja:[email protected]/shop';
+const store = new MongoDBStore({
+    uri: MONGODB_URI,
+    collection: 'sessions'
+});
+app.use(express.static(path.join(__dirname, 'public')));
+app.use('/images', express.static(path.join(__dirname, 'images')));
+app.use(session({ secret: "my secret", resave: false, saveUninitialized: false, store: store }));
+const csrfProtection = csrf();
+app.use(csrfProtection);
+app.use(flash());
+app.use((req, res, next) => {
+    res.locals.isAuthenticated = req.session.isLoggedIn;
+    res.locals.csrfToken = req.csrfToken();
+    next();
+})
+
+app.use((req, res, next) => {
+    if (!req.session.user) {
+        return next();
+    }
+    User.findById(req.session.user._id).then((user) => {
+        if (!user) {
+            return next();
+        }
+        req.user = user;
+        next();
+    }).catch(err => {
+        const error = new Error(err);
+        error.httpStatusCode = 500;
+        return next(error);
+        // throw new Error(err) ;
+    }
+    );
+})
+
+app.use('/admin', admin.routes);
+app.use(shopRouter);
+app.use(authRouter);
+// app.use((req, res, next) => {
+//     // res.sendFile(path.join(__dirname,'views','error.html'));
+//     res.status(404).render('404', { pageTitle: 'Page not Found', path: 'random' });
+// })
+app.use(errorRouter);
+app.use((error, req, res, next) => {
+    console.log(error);
+    res.status(500).render('500', { pageTitle: 'Error', path: 'random', isAuthenticated: false });
+    // res.redirect('/500');
+})
+mongoose.connect(MONGODB_URI).then(() => {
+    app.listen(3000);
+}).catch(err => console.log(err));
+
+
+
+// without signup:
+// mongoose.connect(MONGODB_URI).then(() => {
+//     User.findOne().then((user) => {
+//         if (!user) {
+//             const user = new User({
+//                 name: "Pooja", email: "[email protected]", cart: {
+//                     items: []
+//                 }
+//             });
+//             user.save();
+//             console.log("jhjfnejk");
+//         }
+//     })
+//     app.listen(3000);
+// }).catch(err => console.log(err));
+
+
+
+// mongodb
+// const User=require('./models/user');
+// const mongoConnect = require('./util/database').mongoConnect;
+// mongoConnect(() => {
+//     app.listen(3000);
+// })
+// app.use((req,res,next)=>{
+//     User.findById('65cef2b239dbf8c172a0dd5b').then((user)=>{
+//         req.user=new User(user.username,user.email,user.cart,user._id);
+//         // req.user=user;
+//         next();
+//     }).catch(err=>console.log(err));
+// })
+
+// Sequelize
+// const sequelize = require('./util/database');
+// const Product = require('./models/product');
+// const User = require('./models/user');
+// const Cart=require('./models/cart');
+// const CartItem=require('./models/cart-item');
+// const Order=require('./models/order');
+// const OrderItem=require('./models/order-item');
+// app.use((req, res, next) => {
+//     User.findByPk(1).then((user) => {
+//         req.user = user;
+//         next();
+//     }).catch(err => console.log(err));
+// })
+// Product.belongsTo(User, { constraint: true, onDelete: 'CASCADE' });
+// User.hasMany(Product);
+// User.hasOne(Cart);
+// Cart.belongsTo(User);
+// Cart.belongsToMany(Product,{through:CartItem});
+// Product.belongsToMany(Cart,{through:CartItem});
+// Order.belongsTo(User);
+// User.hasMany(Order);
+// Order.belongsToMany(Product, { through: OrderItem});
+// Product.belongsToMany(Order, { through: OrderItem});
+// sequelize.sync(
+//     // {force:true}
+//     ).then(() => {
+//     User.findByPk(1).then((user) => {
+//         if (!user) {
+//             User.create({ name: 'Pooja', email: 'pooja@gmail.com' }).then((user)=>{
+//                 user.createCart().then().catch(err=>console.log(err));
+//             }).catch(err => console.log(err));
+//         }
+//     }).catch(err => console.log(err));
+//     app.listen(3000);
+// }).catch(err => console.log(err));